National Standard/International Standard Rail Core Specifications Selection and Material Compatibility Requirements
Dab tsi yog cov ntsiab lus tseem ceeb thiab kev siv cov qauv ntawm lub teb chaws tus qauv tsheb ciav hlau?
Lub teb chaws tus qauv kev tsheb ciav hlau tau muab faib ua cov tsheb ciav hlau, tsheb ciav hlau hnyav thiab nqa cov tsheb ciav hlau, nrog cov ntsiab lus tshwj xeeb npog txhua qhov kev xav tau. Lub teeb rail specifications yog 8-30kg/m, siv GB11264 tus qauv, haum rau lub teeb load scenarios xws li Hoobkas ceg kab thiab ib ntus lem. Cov ntsiab lus tseem ceeb ntawm cov tsheb ciav hlau hnyav yog 50/60/75kg / m, ua raws li tus qauv tshiab GB2585-2007, uas yog cov qauv tseem ceeb rau txoj kev tsheb ciav hlau, metro thiab high-speed railway mains. Lifting rails yog QU70/80/100/120, siv YB / T5055 tus qauv, haum rau kev lag luam thiab tsuas hnyav-load hoisting lem. Txoj kev tsheb ciav hlau qhov siab, qhov dav hauv qab thiab lub taub hau dav ntawm txhua qhov tshwj xeeb raug kho, thiab kev xaiv yuav tsum yog qhov tseeb raws li qhov tseeb load.
Dab tsi yog cov qauv tseem ceeb ntawm cov txheej txheem txawv teb chaws thiab cov qauv hauv teb chaws?
Cov txheej txheem txawv teb chaws feem ntau yog UIC, Asmeskas tus qauv, tus qauv Askiv thiab German tus qauv, thiab cov qauv hloov mus rau ntau lub teb chaws khiav. Lub ntsiab UIC rails yog UIC50/54/60, siv UIC860 European standard, haum rau railway kab nyob rau hauv cov teb chaws Europe thiab Southeast Asia. Asmeskas tus qauv rails yog ASCE25-85 thiab 136RE, siv ASTM / AREMA cov qauv kom ua tau raws li cov kev cai siv hauv Asmeskas. British tus qauv rails yog BS80A / 90A, German tus qauv yog DIN536 series, txhua tus muaj qhov tshwj xeeb loj. Kev xaiv cov txheej txheem txawv teb chaws yuav tsum tau lees paub qhov kev ua tiav cov txheej txheem kom tsis txhob muaj teeb meem kev teeb tsa los ntawm cov qauv tsis sib haum xeeb.
Dab tsi yog cov ntaub ntawv tseem ceeb thiab cov ntsuas kev ua tau zoo ntawm lub teb chaws tus qauv rails?
Cov ntaub ntawv tseem ceeb ntawm lub teb chaws tus qauv rails yog U71Mn, 55Q, 50Mn thiab Q235, thiab cov ntaub ntawv sib txawv hloov mus rau cov kab sib txawv. U71Mn yog cov khoom siv tseem ceeb ntawm cov tsheb ciav hlau hnyav, nrog lub zog tensile Ntau dua lossis sib npaug ntawm 880MPa, hnav tsis kam thiab qaug zog, haum rau siab - kev tsheb ciav hlau ceev thiab hnyav - cov kab tseem ceeb . 55Q cov khoom muaj cov yas zoo thiab tensile zog ntau dua los yog sib npaug rau 510MPa, siv rau cov kab tsheb loj 11 thiab cov khoom siv zoo tib yam thiab muaj zog cuam tshuam tsis kam, haum rau lifting rail scenarios, thiab Q235 muaj tus nqi qis rau cov kab tsheb ciav hlau. Tag nrho cov khoom siv ntsia hlau yuav tsum tsis muaj qhov tawg thiab tsis sib xws ntawm kev tsheb ciav hlau lub taub hau kom ua kom muaj kev nyab xeeb ntawm kev tsav tsheb.
Dab tsi yog cov khoom siv ntawm cov qauv txawv teb chaws thiab lawv cov kev ua tau zoo adaptation yam ntxwv?
Cov ntaub ntawv tseem ceeb ntawm cov txheej txheem txawv teb chaws yog 900A, 1100A thiab R260, thiab cov ntsuas kev ua tau zoo raws li kev siv thoob ntiaj teb cov kev cai. 900A cov khoom muaj lub zog tensile Ntau dua lossis sib npaug rau 900MPa, haum rau UIC60 rails thiab ua tau raws li qhov yuav tsum tau muaj ntawm European kev sib tw ceev ceev railways . 1100A cov khoom siv zoo heev rau cov khoom siv muaj zog hnyav- thauj railways thiab siab - khiav ceev. R260 yog cov khoom siv tshwj xeeb European tus qauv nrog kev sib npaug ntawm cov yas thiab lub zog, haum rau cov qauv British BS series rails. Cov ntaub ntawv txawv teb chaws yuav tsum dhau daim ntawv pov thawj thoob ntiaj teb kom ntseeg tau tias muaj kev sib raug zoo nrog cov khoom siv hauv zos thiab tsis txhob tawg los ntawm cov khoom tsis sib haum.
Dab tsi yog qhov tseem ceeb sib txawv hauv kev xaiv tsheb ciav hlau rau cov kab siab thiab qis qis?
High - cov kab ceev nyiam 60/75kg / m lub teb chaws tus qauv hnyav rails thiab UIC60 txawv teb chaws tus qauv rails nrog high rail nto precision thiab siab - cov ntaub ntawv muaj zog. High- lub taub hau tsheb ciav hlau ceev yog quenched, hnav tsis kam yog nce 3 zaug, uas tuaj yeem tiv taus siab - lub log zaus thiab txo qhov hnav. Tsawg- cov kab ceev tuaj yeem xaiv 30-50kg/m lub teb chaws tus qauv rails thiab UIC50 txawv teb chaws tus qauv rails nrog cov khoom siv nruab nrab thiab cov nqi pheej yig dua. Tsawg- cov tsheb ciav hlau ceev tsis tas yuav siab - zaus quenching, tsuas yog yuav tsum tau ua kom tau raws li qhov yooj yim thauj khoom, thiab cov qauv kev tsheb ciav hlau qhov tseeb yog me ntsis qis dua qhov siab - nrawm nrawm. Lub hauv paus ntawm kev xaiv yog los txiav txim siab txog kev tsheb ciav hlau thiab cov khoom siv raws li kev tsav tsheb ceev thiab qag, thiab qis - cov tsheb ciav hlau ceev tau txwv nruj heev los hloov cov tsheb ciav hlau ceev.